UpTime.onl is described as 'Simple website availability and uptime monitoring tool. No installation, checks for backend and frontend errors' and is a website monitoring tool in the network & admin category. There are more than 25 alternatives to UpTime.onl for a variety of platforms, including Web-based, SaaS, Android, iPhone and Windows apps. The best UpTime.onl alternative is Uptime Kuma, which is both free and Open Source. Other great apps like UpTime.onl are Better Stack, UptimeRobot, Pingdom and StatusCake.
AI-driven SRE platform offering real-time infrastructure monitoring, incident management, log analytics, traces, error tracking, metrics, real user monitoring, status pages, and a warehouse, with full data ingestion, centralized dashboard, custom alerts, and reduced costs.
United States
Self-hosted monitoring tool to track uptime via HTTP(s), TCP, Ping, and more with reactive design. Offers 20-second interval checks, notifications through various channels like Webhook, Telegram, supports multiple languages, includes status page and ping charts, aiding small to medium enterprises effectively.
Hong Kong SAR China
Free real-time monitoring for 50 sites every 5 minutes. Custom alerts through email, SMS, calls, and apps like Slack, PagerDuty, and more. Use status pages and mobile apps for easy management.
Slovakia
EU
Tracks uptime, downtime, and page speed with synthetic and real user monitoring, simulates critical flows, analyzes visitor data by location, device, and browser, sends instant alerts, and provides analytics and reporting to troubleshoot and optimize sites.
United States
Provides uptime, performance, and page speed monitoring for up to 10 websites. Offers customizable alerts by email, SMS, or third-party apps, root cause analysis, mobile support, server and SSL checks, plus a free plan with detailed reports for diagnostics.
United Kingdom
Real-time monitoring with checks every minute from over 30 global locations, alerts for outages or slowdowns, detailed uptime and response time reports, customizable alerts, public status pages, SSL and domain monitoring, and REST API for automation.
United States
Monitor your website, server, API, application, service and get notified if your resources have some problems with availability. Upzilla notifies you in Slack, Telegram, Messenger, or by email. Works also as a public status page with subscriptions.
India
Track web page changes in any web page daily for free users, every 30 minutes for paid users - no RSS or Atom required. Receive notifications via email, Instant Message, and SMS.
Free open-source website monitoring software, easy to set up and use for monitoring web sites. You can monitor single web pages, multiple web pages, pages in sitemap and even your whole web site using spider. You can check HTTP result codes and even contents of the checked pages.
We alert you, before your customers do.
OnlineOrNot monitors your websites, web apps, and APIs, letting you know instantly if anything goes wrong.
Australia
Website uptime monitoring. Be notified by email when your site is down. Free and open source, monitor as many URLs as you want. You can hack it and host it yourself or use the official instance.
